US3178540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switch having deformable contact members
Assignee: Zeneca Inc
•
Filing: 1961-04-17
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Granted: 1965-04-13
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Expires: 1981-04-17
Abstract
No abstract record available.
Inventors
- 👤 Benjamin A Gay
- 👤 Donald A Moyant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:25
CPC Classifications
H; H01; H01H; H01H39/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
AN ELECTRICAL SWITCH COMPRISING A SWITCH HOUSING CONTAINING A MOVABLE PISTON MEMBER AND A PLURALITY OF PAIRS OF ELECTRICAL CONTACTS MEMBERS, EACH PAIRS OF ELECTRICAL CONTACT MEMBERS HAVING A CLOSED POSITION WHEREIN THEY ARE IN CONTACT AND AN OPEN POSITION WHEREIN THEY ARE OUT OF CONTACT, SAID ELECTRICAL CONTACT MEMBERS OF EACH PAIR POSITIONED IN RELATION TO EACH OTHER SO THAT DEFORMATION OF ONE MEMBER OF THE SAID CONTACT PAIR INTO A PERMANENT SET EFFECTS A CHANGE OF SAID PAIR FROM ONE OF SAID POSITIONS TO THE OTHER OF SAID POSITIONS, MEANS WITHIN SAID SWITCH HOUSING TO DRIVE SAID MOVABLE PISTON TOWARD SAID CONTACT MEMBERS, SAID PISTON MEMBERS POSITIONED SO THAT UPON MOVEMENT OF SAID PISTON MEMBERS SAID PISTON MEMBER CONTACTS AND DEFORMS INTO A PERMANENT SET ONE MEMBER OF EACH CONTACT PAIR AND THEREBY CAUSES THE PAIR OF CONTACT MEMBERS TO CHANGE FROM ONE OF SAID POSITIONS TO THE OTHER OF SAID POSITIONS.
Claim 2
Dependent Claim
154 words
AN ELECTRICAL SWITCH COMPRISING A SWITCH HOUSING CONTAINING A MOVABLE PISTON MEMBER AND A PLURALITY OF PAIRS OF ELECTRICAL CONTACTS MEMBERS, EACH PAIRS OF ELECTRICAL CONTACT MEMBERS HAVING A CLOSED POSITION WHEREIN THEY ARE IN CONTACT AND AN OPEN POSITION WHEREIN THEY ARE OUT OF CONTACT, SAID ELECTRICAL CONTACT MEMBERS OF EACH PAIR POSITIONED IN RELATION TO EACH OTHER SO THAT DEFORMATION OF ONE MEMBER OF THE SAID CONTACT PAIR INTO A PERMANENT SET EFFECTS A CHANGE OF SAID PAIR FROM ONE OF SAID POSITIONS TO THE OTHER OF SAID POSITIONS, MEANS WITHIN SAID SWITCH HOUSING TO DRIVE SAID MOVABLE PISTON TOWARD SAID CONTACT MEMBERS, SAID PISTON MEMBERS POSITIONED SO THAT UPON MOVEMENT OF SAID PISTON MEMBERS SAID PISTON MEMBER CONTACTS AND DEFORMS INTO A PERMANENT SET ONE MEMBER OF EACH CONTACT PAIR AND THEREBY CAUSES THE PAIR OF CONTACT MEMBERS TO CHANGE FROM ONE OF SAID POSITIONS TO THE OTHER OF SAID POSITIONS.
References Cited (Backward Citations)
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US2931874A
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US2999912A
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US2929892A
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US2883492A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |